diff --git a/Documentation/git-config.txt b/Documentation/git-config.txt
index 7617d9eb24..53827537b3 100644
--- a/Documentation/git-config.txt
+++ b/Documentation/git-config.txt
@@ -326,7 +326,7 @@ To actually match only values with an exclamation mark, you have to
 To add a new proxy, without altering any of the existing ones, use
 
 ------------
-% git config core.gitproxy '"proxy-command" for example.com'
+% git config --add core.gitproxy '"proxy-command" for example.com'
 ------------
 
 An example to use customized color from the configuration in your